As the eldest son of Qin Shihuang, Fusu had Meng Tian, ??the best commander in the Qin Dynasty at that time, and the most effective army in Qin - nearly 300,000 Qin troops. If Fusu had not committed suicide and led his army back to Xianyang with Meng Tian, ??the support for Fusu in Xianyang would not be less than that for Hu Hai due to Fusu's status as the eldest son and the turmoil caused by Qin Shihuang's sudden death.

For Hu Hai, Zhao Gao and Li Si at that time, they did not have enough capital to compete with Fusu, and failure was inevitable. Less than a year after he ascended the throne, Chen Sheng and Wu Guang rose up against him. Although Chen Sheng's excuse at that time was "Fusu" and "Xiang Yan", it is obvious that their rebellion will not change because of Fusu's accession to the throne, and the responsibility for the rebellion cannot be entirely passed on to Qin Yi, who has just ascended the throne less than a year ago. mortar. Even if Fusu is replaced, the established policies of the Qin Empire cannot be changed instantly, and the construction of Qin Shihuang's Mausoleum and the Great Wall cannot be stopped immediately because of Fusu's appointment. The resistance of the Six Eastern Countries has reached a critical point, and only figures like Chen Sheng and Wu Guang can detonate it. Even if Zhang Han is replaced by Meng Tian, ??it will be difficult to eliminate the rebels of the Six Kingdoms of Guandong if Meng Tian is added to Zhang Han. At that time, with the continuous influx of rebels, it was not enough to adopt the strategy of "blocking the bullet holes" and "sucking flies" to achieve unification. It was very likely that the main force of the Qin army would be exhausted in the process, causing the Qin Dynasty to end up like Hu Hai Just as perish. It would be better to retreat to Hangu Pass, protect Qin's homeland, wait for the chaos in Guandong, and then take the opportunity to advance eastward. For Fusu, facing the Kwantung rebels, if he did not support more forces and did not allow some people to develop their own power, it would be almost impossible to successfully suppress them.

Unless he changes the national policy of prefectures and counties formulated by Qin Shihuang and uses some land as bait to cultivate more forces to stabilize the situation. From the death of the First Emperor in July to the announcement of his death by Hu Hai in August, little was known about his death. This is because the leader of the inner court, Zhongshu, ordered Zhao Gao to control the inner court, and the prime minister of the outer court, Li Si, controlled the outer court, and both blocked the news. Their intention was to make Hu Hai emperor, but they suppressed the news out of fear of Qin Shihuang's other sons and the changes in the world.